CN214823878U

CN214823878U - Lithium battery electric vehicle inverted front fork

Info

Publication number: CN214823878U
Application number: CN202023275393.7U
Authority: CN
Inventors: 李灵松; 乔战琳
Original assignee: Jiangsu Chuanma Industrial Technology Co ltd
Current assignee: Jiangsu Chuanma Industrial Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-23
Anticipated expiration: 2030-12-29

Abstract

The utility model provides a front fork is invertd to lithium cell electric motor car, including two sections of thick bamboo and the shoulder lid of moving away to avoid possible earthquakes, realize fixed connection through the handle connecting rod between two sections of moving away to avoid possible earthquakes, the shoulder lid is fixed in the top of a section of thick bamboo of moving away to avoid possible earthquakes, and the handle connecting rod is fixed in the middle part of a section of thick bamboo of moving away to avoid possible earthquakes, and the middle part of handle connecting rod is provided with the person in charge spare that passes the shoulder lid and be connected with the handle of riding, and the bottom of a section of thick bamboo of moving away to avoid possible earthquakes is provided with the branch pipe spare that downwardly extending, and the bottom of a branch pipe spare is provided with the fork foot spare that links firmly with the tire pivot. Through invering a section of thick bamboo and branch pipe spare of moving away to avoid possible earthquakes, correspond the tire with thinner branch pipe spare, the interval grow between the branch pipe spare, consequently can assemble the tire that increases the wheel width in the front fork, improved the comfort level of riding.

Description

Lithium battery electric vehicle inverted front fork

Technical Field

The utility model belongs to the technical field of the equipment of riding, relate to lithium battery electric motor car, especially kind of lithium battery electric motor car inverts the front fork.

Background

The lithium battery electric vehicle has high endurance mileage and high riding speed, and the wheel width is more than 15cm, so that excellent riding effect can be brought. However, the front fork of the existing lithium battery electric vehicle is arranged upright, namely the shock absorbing cylinder is close to the tire, so that the installation distance of the tire is reduced, and the electric vehicle can only select a narrower tire.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a front fork which can be adapted to a tire having a large wheel width.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a lithium cell electric motor car inversion front fork, includes two sections of thick bamboo and shoulder lid of moving away to avoid possible earthquakes, two realize fixed connection through the handle connecting rod between the section of thick bamboo of moving away to avoid possible earthquakes, the shoulder lid is fixed in the top of a section of thick bamboo of moving away to avoid possible earthquakes, the handle connecting rod is fixed in the middle part of a section of thick bamboo of moving away to avoid possible earthquakes, the middle part of handle connecting rod is provided with and passes the shoulder lid and the person in charge spare of being connected with the handle of riding, the bottom of a section of thick bamboo of moving away to avoid possible earthquakes is provided with the branch pipe spare that downwardly extending, the bottom of a branch pipe spare is provided with the fork foot spare that links firmly with the tire pivot.

The branch pipe piece is provided with a shock absorber, the shock absorber comprises a working cylinder and a piston rod, one end of the working cylinder is provided with a sealing cover positioned at the top end of the branch pipe piece, the other end of the working cylinder is provided with a guide sealing seat, a piston is arranged in the working cylinder, one end of the piston rod penetrates into the working cylinder from the guide sealing seat and is fixedly connected with the piston, and the other end of the piston rod is positioned outside the working cylinder; and a damper which is positioned between the sealing cover and the piston and is fixedly connected with the sealing cover is arranged in the working cylinder.

Further, the damper comprises a shell, a piston part and a base, wherein two ends of the shell are connected with the cylinder wall of the working cylinder in a sealing mode, and a first oil storage chamber is formed between the shell and the working cylinder; a first chamber is arranged in the shell, and a second chamber with an opening is arranged at one end corresponding to the piston; the piston part is arranged in the second cavity and comprises a piston shell, a sealing element and an elastic moving part, a second oil storage chamber is arranged in the piston shell, the sealing element is fixed at one end, corresponding to the piston, of the piston shell, an oil inlet hole is formed in the sealing element, the second oil storage chamber is arranged in the piston shell, the elastic moving part is arranged in the second oil storage chamber, and a sealing structure capable of sealing the oil inlet hole is arranged in the elastic moving part; the shell is internally provided with a first oil inlet communicated with the second cavity, the piston part is internally provided with a second oil inlet communicated with the second oil storage chamber and staggered with the first oil inlet in height, and the second oil inlet is closer to the piston; the connecting part is arranged in the shell and fixedly connected with the bottom plate of the second chamber through a spring; a connecting rod is arranged at one end of the piston part corresponding to the piston, penetrates through the cavity and extends towards the direction of the sealing cover, and the connecting rod is fixedly connected with the connecting part; the base is fixed in the first chamber, and the guide rod of the base is movably connected with the connecting part.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the shock-absorbing cylinder and the branch pipe pieces are inverted, the thinner branch pipe pieces correspond to the tires, and the distance between the branch pipe pieces is increased, so that the tires with the increased wheel width can be assembled in the front fork, and the riding comfort level is improved;

2. the damper is additionally arranged in the shock absorber of the front fork, so that the oil pressure damping effect of the shock absorber is good, the shock absorbing stroke is large, when the front fork is in a locked state and is subjected to external impact force again, the oil return system is automatically opened by the damper, the front fork is immediately subjected to shock absorbing damping, and the buffering effect is achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a block diagram of an inverted front fork;

FIG. 2 is an exploded view of the shock absorber;

FIG. 3 is a cross-sectional view of the shock absorber;

fig. 4 is a partially enlarged schematic view of the shock absorber.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example one

Referring to the inverted front fork shown in fig. 1, the inverted front fork comprises two shock-absorbing cylinders A and a shoulder cover B, the two shock-absorbing cylinders are fixedly connected through a handle connecting rod C, the shoulder cover is fixed at the top end of the shock-absorbing cylinder, the handle connecting rod is fixed in the middle of the shock-absorbing cylinder, a main pipe D which penetrates through the shoulder cover and is connected with a riding handle is arranged in the middle of the handle connecting rod, a branch pipe E extending downwards is arranged at the bottom of the shock-absorbing cylinder, and a fork foot piece F fixedly connected with a tire rotating shaft is arranged at the bottom of the branch pipe. Through invering a section of thick bamboo and branch pipe spare of moving away to avoid possible earthquakes, correspond the tire with thinner branch pipe spare, the interval grow between the branch pipe spare, consequently can assemble the tire that increases the wheel width in the front fork, improved the comfort level of riding.

Example two

The present embodiment is based on the first embodiment.

Referring to fig. 2-4, the branch pipe is provided with a shock absorber including a working cylinder 10 and a piston rod 20, one end of the working cylinder 10 is provided with a sealing cover 30 located at the top end of the branch pipe, the other end is provided with a guide sealing seat 40, a piston 50 is arranged in the working cylinder 10, one end of the piston rod 20 penetrates into the working cylinder 10 from the guide sealing seat 40 and is fixedly connected with the piston 50, and the other end is located outside the working cylinder 10; a damper 60 is disposed between the sealing cap 30 and the piston 50 and fixedly connected to the sealing cap 30 in the cylinder 10. The damper 60 includes a housing 61, a piston portion 62, and a base 64, both ends of the housing 61 are hermetically connected to the cylinder wall of the cylinder 10, and a first oil reservoir chamber 65 is formed between the housing 61 and the cylinder 10; a first chamber 611 is arranged in the housing 61, and a second chamber 612 with an opening is arranged at one end corresponding to the piston 50; the piston part 62 is arranged in the second chamber 612, the piston part 62 comprises a piston shell 621, a sealing element 622 and an elastic moving element 623, a second oil storage chamber 66 is arranged in the piston shell 621, the sealing element 622 is fixed at one end of the piston shell 621 corresponding to the piston 50, an oil inlet hole 67 is arranged in the sealing element 622, the second oil storage chamber 66 is arranged in the piston shell 621, the elastic moving element 623 is arranged in the second oil storage chamber 66, and a sealing structure capable of sealing the oil inlet hole 67 is arranged in the elastic moving element 623; the first oil inlet 68 communicated with the second cavity 612 is formed in the shell 61, the second oil inlet 69 communicated with the second oil storage chamber 66 and highly staggered with the first oil inlet 68 is formed in the piston part 62, and the second oil inlet 69 is closer to the piston 50; the connecting part 63 is arranged in the shell 61 and fixedly connected with the bottom plate of the second cavity 612 through a spring 70; one end of the piston part 62 corresponding to the piston 50 is provided with a connecting rod 80, the connecting rod 80 penetrates through the second chamber 612 and extends towards the sealing cover 30, and the connecting rod 80 is fixedly connected with the connecting part 63; the base 64 is fixed in the first cavity 611, and the guide rod of the base 64 is movably connected with the connecting part 63.

In the dead-lock state of the front fork, the hydraulic oil in the cylinder 10 is compressed to the utmost and can not be compressed any more, the damping shock of the front fork is closed, and the elastic moving member 623 in the damper 60 seals the oil inlet 67. If the front fork is impacted by the outside, the remaining compression space of the hydraulic oil in the working cylinder 10 is activated, the pressure of the hydraulic oil between the piston 50 and the piston portion 62 is increased, the piston portion 62 presses the elastic movable member 623 upward (in the handle direction) to open the oil inlet hole 67, the hydraulic oil in the working cylinder 10 enters the second oil storage chamber 66 (to release the pressure), and the piston portion 62 is pressed upward as a whole; when the second oil inlet 69 of the piston portion 62 is communicated with the first oil inlet 68 of the housing 61, the hydraulic oil in the second oil storage chamber 66 immediately enters the first oil storage chamber 65 from the oil inlet. When the oil pressure is greater than the elastic force of the spring 70, the spring 70 is compressed to drive the piston portion 62 to move toward the piston rod 20, so that the second oil inlet 69 of the piston portion 62 is dislocated and disconnected from the first oil inlet 68 of the housing 61. The piston portion 62 also provides shock damping in the dead-lock condition of the front fork during the process of moving up and down.

Further, one end of the piston portion 62 corresponding to the piston 50 extends outside the housing 61, and the piston portion 62 is provided with a ring of end caps at the end, and the end caps are in contact with the housing 61 to limit the displacement of the piston portion 62. The end of the end cap corresponding to the housing 61 is provided with a sealing gasket 90, which seals between the piston part 62 and the housing 61.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a lithium cell electric motor car inversion front fork, its characterized in that, includes two a section of thick bamboo of moving away to avoid possible earthquakes (A) and shoulder lid (B), two realize fixed connection through handle connecting rod (C) between the section of thick bamboo of moving away to avoid possible earthquakes, the shoulder lid is fixed in the top of a section of thick bamboo of moving away to avoid possible earthquakes, the handle connecting rod is fixed in the middle part of a section of thick bamboo of moving away to avoid possible earthquakes, the middle part of handle connecting rod is provided with and passes main pipe fitting (D) that the shoulder lid is connected with the handle of riding, the bottom of a section of thick bamboo of moving away to avoid possible earthquakes is provided with downwardly extending's a pipe fitting (E), the bottom of a pipe fitting is provided with fork foot spare (F) that links firmly with the tire pivot.

2. The lithium battery electric vehicle inversion front fork as claimed in claim 1, wherein the branch pipe fitting is provided with a shock absorber, the shock absorber comprises a working cylinder (10) and a piston rod (20), one end of the working cylinder (10) is provided with a sealing cover (30), the other end is provided with a guide sealing seat (40), a piston (50) is arranged in the working cylinder (10), one end of the piston rod (20) penetrates into the working cylinder (10) from the guide sealing seat (40) and is fixedly connected with the piston (50), and the other end is positioned outside the working cylinder (10); a damper (60) which is positioned between the sealing cover (30) and the piston (50) and is fixedly connected with the sealing cover (30) is arranged in the working cylinder (10).

3. The lithium battery electric vehicle inverted front fork as set forth in claim 2, wherein the damper (60) comprises a housing (61), a piston part (62) and a base (64), two ends of the housing (61) are hermetically connected with the cylinder wall of the working cylinder (10), and a first oil storage chamber (65) is formed between the housing (61) and the working cylinder (10); a first chamber (611) is arranged in the shell (61), and a second chamber (612) with an opening is arranged at one end corresponding to the piston (50); the piston part (62) is arranged in the second chamber (612), the piston part (62) comprises a piston shell (621), a sealing element (622) and an elastic moving element (623), a second oil storage chamber (66) is arranged in the piston shell (621), the sealing element (622) is fixed at one end, corresponding to the piston (50), of the piston shell (621), an oil inlet hole (67) is formed in the sealing element (622), the second oil storage chamber (66) is arranged in the piston shell (621), the elastic moving element (623) is arranged in the second oil storage chamber (66), and a sealing structure capable of sealing the oil inlet hole (67) is arranged in the elastic moving element (623); an oil inlet I (68) communicated with the cavity II (612) is arranged in the shell (61), an oil inlet II (69) communicated with the second oil storage chamber (66) and staggered with the oil inlet I (68) in height is arranged in the piston part (62), and the oil inlet II (69) is closer to the piston (50); the connecting part (63) is arranged in the shell (61) and is fixedly connected with the bottom plate of the second chamber (612) through a spring (70); a connecting rod (80) is arranged at one end, corresponding to the piston (50), of the piston part (62), the connecting rod (80) penetrates through the second cavity (612) and extends towards the sealing cover (30), and the connecting rod (80) is fixedly connected with the connecting part (63); the base (64) is fixed in the first cavity (611), and the guide rod of the base (64) is movably connected with the connecting part (63).

4. The lithium battery electric vehicle inverted front fork as set forth in claim 3, wherein an end of said piston portion (62) corresponding to said piston (50) extends outside said housing (61), said piston portion (62) being provided with a ring of end caps at this end, said end cap being provided with a gasket (90) corresponding to an end of said housing (61).